Apparatus for obtaimng power fxg



E. H. Mmmm.

APPARATUS FR OBTAIMNG POWER FROM SOLAR HEAT.

(Application led Sept. 30. 1897.,

SPECIFICATION terminer part of Letters Patent No. 659.450, dated October 9, 1900.

collection tiled September 3U. 1897. Surlal N 653,661. (No model.)

T0 all reflent t muy cwi-earn,.-

lc it known that l, EDWIN H. McIlnNRY, ot' St. lnul, Ramsey county, Minnesota, have invented certain Improvements in Apparatus for Obtaining,r Power from Selur lioattfwhich the following is a specification.

`lly invention relates to improvements iu means for developing power from solar heat or other sources ol lient el' low degree, and particularly within the range of ordinary atmospheric temperatures, its object being to reuderavailable that potential latent energy from such sources of hen-t which hns notheretoforo been commercially utilized.

To this end my invention consists in providingmeans for nbsorbing the hea-t stored in the atmosphere and in radiated or obscure aberrant rays; oke., and transferring the same to :t working,r fluid having n boiling-point below the atmospheric tempera-ture, suitable menus being provided for utilizing the power developed by the i-'nporization of such working fluid.

My invention further consists in the iinproved means hereinafter more particularly described and claimed. I

In the accompanyingr drawings, forming part of this specification, Figure l is a sectional and diagrammatic View of one form of collcetor,nith means for insuring continuous circulation of the working fluid; and Fig. 2 is a longitudinal section or" the collector.

lln the drawings, i represen ts the. collector, shown in the formant two p'irallel sheets of metal of adequate surface arca, connected by partitions A', p rojetiugiij jard from the op.- posite walls of the collcctorand constituting a eirculoting-passage through the same for the confined water. The upper and lower ends of thc collector A are connected with the adjacent vuporiziLig-chamber D by the pipes and C, respectively. The collector A is ordinarily setatsneh an incline, n iilnstrated in Fig. 3, as will establish and inninmin by the unequal temperature of the watorin thecircnit a naturalcirculation through the vaporizer and. connecting pipes.

lVithin the vnporizer D is arranged the coil D'; connected by the pipel)2 with the pistoncylinder E, tne opposite cud'of the cylinder being connected by a. pipe F2 with the coil F', arranged in the condensing-chamber F, seid coil F' being ,connected by :t pipe F3 with the pump G, which in turn is connected with the coil D by the connecting-pipe D. The con- (l\1nisiii;rciinnilier F is provided with suitable inlet and outlet pipes H and I.' It will be evident that the cycle thus described is Similar to that of an ordinary condensing steam-engine.

A working fluid olf` very low boiling-point contained in the described cycle is caused to circulate in the followiug'manner: 'The heat from the sohnrays, air, or other source is absorbed by thewater in thel collector A and conveyed by it to the vaporizi'ng-chn-mber D. The heat thus transferred causes the vaporization oi the ammonia, carbonic oxid, or other working liquid in the coil D'. This vapor under tension does work lo passing 'through the cylinder E, being-then ejected into the condenser F, from which the products of condensation are forced into the vapcrizer D by the pump G, thus completing tie cycle.

It will be evident that avariety of consti-notions lni'ay be devised for developing power in accordance with my described method, the object being to provide a construction by which the heat derived 'from sources ot heat of low degree is transferred to a working,Y fiuid having a boiling-point bclow the normal temperature of the heat sources, so that said working fluid is vaporized and power developed within the range of ordinary atmospheric temperatures.

By means of the foregoing-described eonstruction of apparatus it is possible to transfer radiant sola-r heat and the stored heat of the atmosphere to a working fluid and vaporize it without exposing such fluid to the direct action of the source of heat, thereby avoiding the prohibitive expense of making a structure which would be strong enough to withstand the pressures of the vapor of the working liquid withoutsueh liquid being cxposml in or caused to circulate through the colmetor.

Means for developing power from atmospheric and solar heat, comprising in combination, a heat-eollector,l a vaporizingmhamber, audit gondpit connecting the saine to form a cycle; a. coil surrounded and nclosed.

ICO

denser, and n pump,nll connected iu :L cyclo; 'l-liitiliii'ibr l'ioub'xuit's which will give to ahozibvehicle, which romains liquid zu. :w the vaporiziiag-ohzunher the requlred horsemospheric temperature and pressure in the power.

in saidvaporizing-chmuber,anengiuocmb" absorb and transmit to the incloscd liquid 5 first cyclo, und ai, liquid of boiling-point; bo- In testimony whereof I :uditi my Signature 5 low atmospheric temperature in tho second in pre-sence of two witnesses. cycle, said collector' boing larger than Suid EDWIN H. MCHENRY. vaporizirig-chamber, and having suc-l1 super- XVitnessos: floial zirezras will causo it, when exposed to II. JOHNSON,

ro the thermal influence of the sun and iii-,i9 MINNIE L. THAUWALD. 

